Question:
Magnan's symptom is related to:
Magnan's symptom is related to:
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Imaginary bugs crawling under the skin point to one stimulant drug.
Updated On: Jun 23, 2026
- Cocaine poisoning
- Cannabis
- Opium
- Alcohol
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The Correct Option is A
Solution and Explanation
Answer: Cocaine poisoning.
Step 1: Magnan's symptom, also called the cocaine bug, is a tactile hallucination (formication) seen in chronic cocaine use. The person feels as if grains of sand or small insects are moving under the skin.
Step 2: This itching sensation leads to scratching, excoriations and ulcers as the patient tries to remove the imaginary bugs.
Step 3: Chronic cocaine use can also cause CNS degeneration with hallucinations, convulsions, delirium and insanity. The sign is classically linked to cocaine, not cannabis, opium or alcohol.
Ref: The Essentials of Forensic Medicine and Toxicology, K.S. Narayan Reddy, 33rd edition, pg 603.
Step 1: Magnan's symptom, also called the cocaine bug, is a tactile hallucination (formication) seen in chronic cocaine use. The person feels as if grains of sand or small insects are moving under the skin.
Step 2: This itching sensation leads to scratching, excoriations and ulcers as the patient tries to remove the imaginary bugs.
Step 3: Chronic cocaine use can also cause CNS degeneration with hallucinations, convulsions, delirium and insanity. The sign is classically linked to cocaine, not cannabis, opium or alcohol.
Ref: The Essentials of Forensic Medicine and Toxicology, K.S. Narayan Reddy, 33rd edition, pg 603.
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